U.S. 30-caliber machine guns fired in Aberdeen Proving Ground, Maryland. Four 30-caliber machine guns on multiple mount with gun. The Vikers Data Computer directs the firing. The gun crew fires the machine guns.
U.S. 37mm automatic anti-aircraft gun fired in Aberdeen Proving Ground, Maryland. The 37mm automatic anti-aircraft mobile mount in a traveling position. The anti-aircraft gun is manned by the gun crew. An officer loads shells. The gun is fired.
U.S. height finders used in World War I. The Barr and Stroud anti-aircraft height finder used in Aberdeen Proving Ground, Maryland. Members of the crew use the height finders. The crew uses the Bausch and Lomb 8-foot height finder.
A German V-2 rocket at the White Sands Proving Ground, New Mexico. A U.S. personnel standing around. A range control building, a gantry crane, a V-2 in launching position and a vertical launching tower for other types of missiles. The V-2 is launched and crashes in the far background. The gantry crane and a smaller type missile launching device in the area. Mountains surrounding the area. A couple of workers stand around and discuss.
Landmarks and monuments in Washington D.C. Aerial views of the U.S. Capitol building and the Jefferson Memorial.
Obelisk of the Washington Monument (2 15th St NW, Washington, DC 20024, United States) in Washington D.C, United States. The Tidal Basin and the Washington Monument in Washington DC. The U.S. Capitol dome in the background. A couple walks near the Tidal Basin.
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